PUSCH Rate-Matching Bit Selection for Flexible Carrier Configuration
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Solution Overview
Problem
Current wireless communication systems, such as those in the LTE and New Radio (NR) standards, face limitations in flexibility and efficiency, particularly in managing multiple component carriers and resource configurations, which can impact communication performance across different scenarios like enhanced Mobile BroadBand, massive Machine Type Communication, and Ultra Reliable and Low Latency Communication.
Innovation Solution
The implementation of a wireless communication system that utilizes Orthogonal Frequency Division Multiplexing (OFDM) with cyclic prefix and discrete Fourier transform-spread OFDM, along with advanced resource grid configurations and carrier aggregation, to enhance communication flexibility and efficiency by optimizing subcarrier spacing, CP configurations, and resource allocation across multiple component carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed communication structure is used, then system simplicity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The patent implements dynamic resource allocation where the network device can flexibly configure resource grids, subcarrier spacings, and cyclic prefix lengths based on real-time communication requirements. This allows the system to adapt to different scenarios (eMBB, mMTC, URLLC) without requiring multiple fixed structures, thereby improving flexibility while maintaining manageable complexity through centralized control.
Solution Approach 2:
The patent utilizes configurable parameters including subcarrier spacing values, cyclic prefix lengths, and resource block allocations that can be dynamically adjusted. By changing these parameters based on traffic type and channel conditions, the system achieves versatility across different communication scenarios without fundamentally altering the underlying architecture.
2Productivity
If multiple component carriers are managed with detailed resource configurations, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
The patent employs a universal resource grid structure that can serve multiple component carriers and support different service types through parameter configuration rather than structural duplication. This multi-functional approach allows efficient resource management across carriers while avoiding the complexity of separate management systems for each carrier.
Solution Approach 2:
The patent divides the frequency domain into multiple component carriers and the time domain into slots and subframes, allowing independent configuration and management of resources. This segmentation enables efficient parallel processing and resource allocation while maintaining organized, manageable complexity through hierarchical structure.
3Reliability
If resource allocation is optimized for specific scenarios, then scenario performance is improved, but adaptability to other scenarios decreases
Solution Approach 1:
The patent implements scenario-specific parameter sets that can be selected and applied dynamically. For example, different subcarrier spacings and cyclic prefix configurations can be chosen based on whether the current traffic is eMBB, mMTC, or URLLC. This allows optimal performance for the active scenario while maintaining the capability to adapt to other scenarios through parameter reconfiguration.
Solution Approach 2:
The system dynamically adjusts resource allocation parameters based on real-time scenario requirements and channel conditions. This dynamic adaptation ensures high reliability for the current scenario while preserving versatility to handle different scenarios as conditions change, avoiding the need for fixed scenario-specific configurations.
Data Source
AI summary
A terminal device includes encoding circuitry configured to encode a code block and output coded bits for the code block, and rate-matching circuitry configured to perform bit-selection procedure for the coded bits, wherein the rate-matching circuitry is configured to determine a starting coded bit index for the bit-selection procedure based on a rate-matching sequence length or an index of an instance of a PUSCH in which the coded bits are mapped.